{ "dataType": "CVE_RECORD", "cveMetadata": { "cveId": "CVE-2024-27052", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.214Z", "datePublished": "2024-05-01T12:54:42.547Z", "dateUpdated": "2026-08-05T11:29:14.215Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:29:14.215Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work\n\nThe workqueue might still be running, when the driver is stopped. To\navoid a use-after-free, call cancel_work_sync() in rtl8xxxu_stop()." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The exploitable window is opened by a local action that stops the device (`ip link set down`, suspend, rfkill, driver unbind) — a remote or adjacent Wi-Fi attacker can queue `c2hcmd_work` but cannot cause `rtl8xxxu_stop()`/`ieee80211_free_hw()` to run. This matches the AV:L scoring of the directly analogous `rtl8187_stop()` teardown UAF (CVE-2025-38604).\nAC:L - The attacker controls both sides of the race: Wi-Fi/BT-coex activity keeps C2H events and RA reports flowing so `schedule_work(&priv->c2hcmd_work)` fires continuously, and the attacker chooses the exact moment to trigger the stop/unbind, so the window can be hit repeatedly until won.\nPR:L - An ordinary local user in a normal desktop/embedded session can reach the teardown path via logind-mediated suspend or rfkill, and no capability is needed to generate the Wi-Fi traffic that keeps the work queued; consistent with PR:L used across the driver-teardown UAF class.\nUI:N - The attacker performs both the traffic generation and the interface stop themselves; no separate victim has to open a file, mount anything, or take any action.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed `rtl8xxxu_priv` slab object can be reclaimed and groomed by the attacker, and the work callback reads through it (`priv->fops`, `priv->udev->dev`, `priv->c2hcmd_queue`), yielding a use-after-free read primitive that can disclose arbitrary kernel memory.\nI:H - The stale work item writes into the freed object (skb dequeue/list manipulation on `c2hcmd_queue`, updates to `priv->ra_report` and `priv->bt_coex`), and the workqueue core manipulates the freed embedded `work_struct`, giving a controlled-write primitive on reclaimed heap memory that is leverageable for control-flow hijack.\nA:H - Even unexploited, the use-after-free reliably produces a kernel oops or panic when the work runs against freed memory, and it can be retriggered on every device stop." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c" ], "versions": [ { "version": "e542e66b7c2ee2adeefdbb7f259f2f60cadf2819", "lessThan": "dddedfa3b29a63c2ca4336663806a6128b8545b4", "status": "affected", "versionType": "git" }, { "version": "e542e66b7c2ee2adeefdbb7f259f2f60cadf2819", "lessThan": "ac512507ac89c01ed6cd4ca53032f52cdb23ea59", "status": "affected", "versionType": "git" }, { "version": "e542e66b7c2ee2adeefdbb7f259f2f60cadf2819", "lessThan": "3518cea837de4d106efa84ddac18a07b6de1384e", "status": "affected", "versionType": "git" }, { "version": "e542e66b7c2ee2adeefdbb7f259f2f60cadf2819", "lessThan": "156012667b85ca7305cb363790d3ae8519a6f41e", "status": "affected", "versionType": "git" }, { "version": "e542e66b7c2ee2adeefdbb7f259f2f60cadf2819", "lessThan": "7059cdb69f8e1a2707dd1e2f363348b507ed7707", "status": "affected", "versionType": "git" }, { "version": "e542e66b7c2ee2adeefdbb7f259f2f60cadf2819", "lessThan": "58fe3bbddfec10c6b216096d8c0e517cd8463e3a", "status": "affected", "versionType": "git" }, { "version": "e542e66b7c2ee2adeefdbb7f259f2f60cadf2819", "lessThan": "1213acb478a7181cd73eeaf00db430f1e45b1361", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c" ], "versions": [ { "version": "5.5", "status": "affected" }, { "version": "0", "lessThan": "5.5", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.214", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.153", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.83", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.23", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7.11", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.2", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.214" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.153" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.83" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.6.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.7.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.8.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.9" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/dddedfa3b29a63c2ca4336663806a6128b8545b4" }, { "url": "https://git.kernel.org/stable/c/ac512507ac89c01ed6cd4ca53032f52cdb23ea59" }, { "url": "https://git.kernel.org/stable/c/3518cea837de4d106efa84ddac18a07b6de1384e" }, { "url": "https://git.kernel.org/stable/c/156012667b85ca7305cb363790d3ae8519a6f41e" }, { "url": "https://git.kernel.org/stable/c/7059cdb69f8e1a2707dd1e2f363348b507ed7707" }, { "url": "https://git.kernel.org/stable/c/58fe3bbddfec10c6b216096d8c0e517cd8463e3a" }, { "url": "https://git.kernel.org/stable/c/1213acb478a7181cd73eeaf00db430f1e45b1361" } ], "title": "wifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-27052", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2024-05-13T15:54:30.303932Z" } } } ], "affected": [ { "cpes": [ "cpe:2.3:o:linux:linux_kernel:5.5:*:*:*:*:*:*:*" ], "vendor": "linux", "product": "linux_kernel", "versions": [ { "status": "affected", "version": "5.5" } ], "defaultStatus": "unknown" }, { "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "vendor": "linux", "product": "linux_kernel", "versions": [ { "status": "affected", "version": "e542e66b7c2e", "lessThan": "58fe3bbddfec", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:46:59.357Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:21:05.987Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/dddedfa3b29a63c2ca4336663806a6128b8545b4", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/ac512507ac89c01ed6cd4ca53032f52cdb23ea59", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/3518cea837de4d106efa84ddac18a07b6de1384e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/156012667b85ca7305cb363790d3ae8519a6f41e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/7059cdb69f8e1a2707dd1e2f363348b507ed7707", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/58fe3bbddfec10c6b216096d8c0e517cd8463e3a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1213acb478a7181cd73eeaf00db430f1e45b1361", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": [ "x_transferred" ] } ] }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-05-12T11:51:18.072Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" } ] } ] }, "dataVersion": "5.2" }